#4F99CB#4F99CB

#4F99CB is a light, moderate cyan. Relative luminance 0.288; OKLCH L 65.6% C 0.105 H 240.5°. Best body text is #000000 at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#4F99CB
RGB	rgb(79, 153, 203)
HSL	hsl(204, 54%, 55%)
HSV	hsv(204, 61%, 80%)
CMYK	cmyk(61.1%, 24.6%, 0%, 20.4%)
CIE-LAB	lab(60.56, -8.00, -32.60)
CIE-LCH	lch(60.56, 33.56, 256.22°)
OKLab	oklab(65.63% -0.0517 -0.0915)
OKLCH	oklch(65.63% 0.105 240.5)
XYZ	xyz(25.3911, 28.7541, 60.7003)
Luminance	0.2876 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F99CB #CB814F

analogous

#4FCBBF #4F99CB #4F5BCB

triadic

#4F99CB #CB4F99 #99CB4F

tetradic

#4F99CB #BF4FCB #CB814F #5BCB4F

square

#4F99CB #BF4FCB #CB814F #5BCB4F

split-complementary

#4F99CB #CB4F5B #CBBF4F

monochromatic

#24587B #327AAA #4F99CB #7EB4D9 #ADD0E7

Accessibility & contrast

On white

3.11

#4F99CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.75

#4F99CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F99CB

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F99CB	#FFFFFF	#000000	##000000
##4F99CB	1.00	3.11	6.75	6.75
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.75	21.00	1.00	1.00
##000000	6.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8299CD

Deuteranopia (green-blind)

#728DCA

Tritanopia (blue-blind)

#00A5AA

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #4f99cb;
/* rgb */ color: rgb(79, 153, 203);
/* oklch */ color: oklch(65.6% 0.105 240.5);

Tailwind

colors: {
  custom: {
    50: '#8bb6db',
    500: '#4f99cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f99cb;
$custom-light: #8bb6db;
$custom-dark: #000000;

JSON

{
  "hex": "#4f99cb",
  "rgb": {
    "r": 79,
    "g": 153,
    "b": 203
  },
  "hsl": {
    "h": 204.194,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.6563,
    "c": 0.1051,
    "h": 240.5
  },
  "luminance": 0.28757
}

Semantic roles & 50–950 ramp

primary

#4F99CB

secondary

#D5B6A1

accent

#864ADE

background

#F9FBFD

surface

#F1F6FB

border

#CBD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #4F99CB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →